Sheet-feeding machine.



c. A. JUENGST.

SHEET FEEDING MACHINE.

APPLICATION FlLED AUGeT, 191 4.

Patented July 10, 1917 lg aww 3 SHEETS-SHEET I- IEEEEE E2555 x 0. AIJUENGST.

SHEET FEEDING MACHINE. /]\PPLICATION FILED AUG-7,1914.

Patented July 10, 1917.

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SHEET FEEDING MACHINE. APPucAHbM FILED AUGJ, 1914.

1,232,56Qn Patented July 10, 1917.

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outrun STATES FATENT @FFJEQE.

CHARLES A. JUENGST, OF CROTON FALLS, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, T0 AMERICAN ASSEMBLING MACHINE COMPANY, A CORPORATION OF DELA- WARE.

SHEET-FEEDING MACHINE.

To all whom it may concern:

Be it known that I, CHARLES A. JUENGST, a citizen of the United States, and a resident of Croton Falls, in the county of lVestchester and State of New York, have invented certain new and useful Improvements in Sheet-Feeding Machines, of which the following is a specification.

1 the combing wheel in rear of the lowermost sheet so that the said lowermost sheet may be readily withdrawn while the pile is lifted. Preferably the advance of the lowermost sheet is utilized to control the actuation of the pile lifting means. The pile lifting means really constitute a sheet feed interrupting means, and it is preferred to actuate this device hydraulically, and to have the sheet actuate a valve controlling the hydraulic device. Means are also provided for supporting the rear end of the pile independently of the combing wheel, and for this purpose I utilize a hopper and suitable means for adjusting the same.

In the accompanying drawings the invention is embodied in a concrete and preferred form, but changes of construction may be made without departing from the legitimate and intended scope of the invention as expressed in the appended claims.

In the said drawings:

Figure 1 is a side elevation of a sheet individualizing device embodying the invention.

Fig. 2 is a detail" view of a portion of the parts shown in Fig. 1, disclosing more particularly the means for flexing the pile.

Fig.3 is a plan view of the parts shown in Fig. 1.

Fig. 4 is a view in elevation, partly in Specification of Letters Patent.

Patented July 10, 1917.

Application filed August 7, 1914. Serial No. 855,647.

section, of the sheet controlled means for lifting the pile.

Fig. 5 is a view of the fluid actuating means for raising the pile, with partsbroken away and in section, looking substantially in the direction of the arrow 5 of Fig. 4.

Fig. 6 is a View in vertical section of some of the parts shown in Figs. .4 and 5, the section being substantially on the line 6-6 of Fig. 4.

Fig. 7 is a detail view of the gearing for driving-the fluid actuated device.

Fig. 8 is a perspective view of the intermeshing gears which cause the circulation of the fluid in the device shown in Figs. 4 to 6 inclusive.

Similar characters of reference indicate corresponding parts in the several views.

137 is a combing wheel suitably mounted on the shaft 138 of the carriage 139. This' carriage 139 is slidable upon the bed as shown by means of ears 140, screws 141 and handle 142. The two screws 141 are connected by means of the sprocket chain 143. Mounted on the carriage 139 are two arms 144 loosely pivoted at 145 and connected at their free ends by means of the bar 146. Loosely mounted on the bar 146 are two inclined arms 147 also connected by a cross bar 148. Rigidly mounted upon the bars 146 and 148 are plates 149 which form a support for the rear edge of the pile. Carried by the two outer plates 149 are lugs 150 through which pass threaded rods 151 which carry at their lower ends transverse pins 152 extending in through the slots 153 in the plates 149 and are provided with the supporting ledges 154 which extend underneath the pile 155, and, in conjunction with the plates 149 constitute a hopper for supporting the rear of the said pile 155. The forward end of the pile 155 is supported on the combing wheel, and it will be noted that the top of the combing wheel is higher than the ledges 154 so that the pile 155 assumes a flexed position. The position vertically of the ledges 154 can be varied by means of the lugs 150 and rods 151.

Connected rigidly to the bar 146 are the links 156 loosely supporting the pawls 157 and having slotted plates 15S pivoted independently of the pawls 157 and engaging with screws 159 011 the arms 147. The pawls 157 are adapted to engage with the racks .160 on the carriage 139.

I of sheets.

The combing wheel may be driven by any suitable means, but preferably it is driven from a pulley 162 on the shaft 163 of one of the feeding-out rollers. Mounted on the pivot 164' is a bracket 164 normally held in one position by means of the pull spring 165. This bracket carries two idlers 166, and a belt 167 is trained from the pulley 162 around one of the idlers 166, around the pulley 168 of the combing wheel, around the other idler 166 back to the pulley 162. Vhen the carriage 139 is adjusted toward and away from the feeding-out rollers, the bracket 164 and spring 165 will cause the idlers166 to maintain the belt 167 taut.

' 169 and 17 0 indicate two feeding-out rollers mounted fast respectively on the shafts 163 and 171. Motion is imparted to the shaft 163 by suitable means, and a chain 172 imparts motion from the gear 173 on the shaft 163 to the gear 174 on the shaft 171 and to'the gear 175 on the shaft 176. Chains 177 extend from the shaft 163 up to a suitable driving shaft. These chains pass over idlers 177 mounted loosely on shaft 163.'

Guides 179 extend parallel to these chains 177, to support the side edges of the sheet, from a point adjacent to the combing wheel 137 to the point where the sheets are utilized, and the chains 177 are provided with pins 180 to propel the sheet after it has been fed out by the feeding-out rollers 169 and 170. The latter (170) of these is provided with a high point 181 which coacts with the other roller 169 to feed the sheet out to the chains 177. Mounted on the beam 182 are the brakes or retarding members 183 which rest on top of the pile.

Suitable means for lifting the pile off the combing wheel 137 are provided consisting here of lifting members 184 adjustably mounted on the arms 185 by means of set screws 186 and slots 187. The arms 185 are mounted on the rockshaft 188 of the car- -riage 139 and the said rockshaft is moved by the actuatingconnection 189 having a shoe-like extension over the plunger 190 .andv pivotally connected to the rockshaft 188 by means of the lever 191 and to the stud 192 of the carriage 139 by means of the link 193. It follows that when the actuating connection 189 is lifted by the plunger 190, the lifting member 184 will lift the pile 011' the combing wheel 137..

The rockshaft 188 consists of two independent members, and the means for lifting the pile are in duplicate, one on each side of the machine, so that each side of the pile may be elevated independently of the other.

This enables a crooked sheet to be acted upon a tition 197 separating the passage 195 from the upper end of the casing. The valve 196 is normally held in its open position by gravity, but is connected by the stem 198 and link 199 to the arm 200 mounted on the rockshaft 201. The rockshaft 201 has the controller finger 202 projecting into grooves 203 in the friction roller 169 and when a sheet of paper reaches the said controller finger 202 it is lifted and the rockshaft 201 is thereby turned and the valve 196 is lifted and closed. Adjacent to the casing 194 is a cylinder 204 constituting a bypass around the partition 197 when the valve 196 is closed by reason ofthe openings 205 and 206. The plunger 190 is mounted in the cylinder. 204. Mounted in the lower end of the casing 194, are two pinions 207 intermeshing with each other and driven from the shaft 176 by means of the sprockets 208, 209 and chain 210. The casing 194 is filled with a suitable liquid, and the rotation of the pinions 207 forces the liquid through the passage 195, past the valve 196 and back to the casing 194. This connection thus constitutes a liquid circuit. When this takes place the plunger 190 is in the position shown in Fig. 5 and the port 205 is closed by the said plunger 190.- If now the valve 196 is closed the liquid will pass through the port 206, raise the plunger 190 and uncover the port 205. This will permit the liquid to pass back into the casing 194 and will, at the same time, elevate the plunger 190, thereby raising the actuating connection 189. As soon as the controller finger 202 drops again the valve 196 will be opened thereby relieving pressure on the plunger 190 and lower ing the pile on the combing wheel 137. I prefer, however, to provide the pinion 207 with cutout portions 211 so that irrespective of the position of the sheet the pressure in the casing 194 will drop and the plunger 190 and valve 196 will therefore descend.

The combing wheel will comb the sheets forwardly, and when the lowermost sheet reaches the controller 202 the pile will be lifted off the combing wheel. The feedingout rollers 169 and 170 will now take hold ofthe sheet and feed it forwardly onto the chains 177. The pile will now descend on the combingwheel again and the operation will berepeated.

What is claimed is:

1. In a sheet feedingmachine, a' pair of combing wheel toward and away from the feed rolls in accordance with the length of the sheets, an endless flexible transmission member between one of the feed rolls and the combing wheel, and a pivoted tension member arranged to exert a constant tension onboth stretches of the flexible transmission member intermediate the feed roll and the combing wheel in any adjusted position of the combing wheel with respect to the feeding rolls.

2. Means for feeding sheets, hydraulically actuated means for interrupting the feed of the sheets comprising: a continuous liquid circuit, means for circulating a liquid therethrough, a plunger located in a by-pass of the liquid circuit and adapted when actuated to establish flow of liquid through the bypass, a normally open valve governing the flow of liquid through the circuit, and sheet actuated means for closing said valve thereby actuating the plunger to permit flow of liquid through the loy-passv 3. A sheet feeding machine comprising a combing wheel for supporting the forward end of a pile of sheets, means for supporting.v

the rear end of the pile, means for raising the forward end of the pile oil the combing wheel, a plunger for actuating the pile lifting means, an adjustable carriage supporting the combing wheel and pile lifting means, and a horizontal extension on the pile lifting means adapted to be actuated by the plunger in any adjusted position of the carriage, said extension being arranged to maintain its horizontal condition inall positions to which it may be movedby the plunger.

4. In a sheet handling machine, a feed roll, a combing wheel for supporting a pile of sheets, means for adjusting the combing wheel toward and away from the feed roll in accordance with the length of the sheets, and a pivoted arm carrying a pair of idle pulleys adapted to engage the opposite stretches of the endless flexible member to maintain the flexible member under tension regardless of the relative position of the feed roll and the combing wheel.

Signed at New York, in the county of New York and State of New York, this 6th day of August, A. D. 1914.

CHARLES A. JUENGST. \Vitnesses MARY W. WALLACE, AxEL V. BEEKEN. 

